Engine-CodesInfiniti – P0500 2003 Infiniti G35

P0500 2003 Infiniti G35 Code - Vehicle Speed Sensor

Quick Answer

The P0500 diagnostic trouble code (DTC) in a 2003 Infiniti G35 indicates a malfunction in the vehicle speed sensor circuit. Common causes include Faulty vehicle speed sensor: The VSS itself may be malfunctioning due to wear and tear, Damaged wiring or connectors: Corrosion or damage to the wiring harness or connectors can disrupt the signal from the VSS, ECM or TCM issues: A malfunction in the engine or transmission control module can also trigger the P0500 code. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
P0500 2003 Infiniti G35 indicates Vehicle Speed Sensor.
Common causes
Common causes include Faulty vehicle speed sensor: The VSS itself may be malfunctioning due to wear and tear, Damaged wiring or connectors: Corrosion or damage to the wiring harness or connectors can disrupt the signal from the VSS, ECM or TCM issues: A malfunction in the engine or transmission control module can also trigger the P0500 code.
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Table of contents Created and updated by William Orellana on Sep 13, 2024
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Code P0500 2003 Infiniti G35 Description

The P0500 diagnostic trouble code (DTC) in a 2003 Infiniti G35 indicates a malfunction in the vehicle speed sensor circuit. The vehicle speed sensor (VSS) is a crucial component that monitors the speed of the vehicle and sends this information to the engine control module (ECM) or transmission control module (TCM). This data is essential for various systems in the vehicle, including the speedometer, cruise control, and transmission shifting.

OBDII Code P0500 2003 Infiniti G35 - Vehicle Speed Sensor
P0500 2003 Infiniti G35 Code - Vehicle Speed Sensor

Common Causes of P0500 2003 Infiniti G35

  1. Faulty vehicle speed sensor: The VSS itself may be malfunctioning due to wear and tear.
  2. Damaged wiring or connectors: Corrosion or damage to the wiring harness or connectors can disrupt the signal from the VSS.
  3. ECM or TCM issues: A malfunction in the engine or transmission control module can also trigger the P0500 code.
  4. Sensor alignment: Improper installation or alignment of the VSS can cause inaccurate readings.
  5. Vehicle speed sensor reluctor ring damage: Damage to the reluctor ring that the VSS reads from can also cause this code.

Symptoms of P0500 2003 Infiniti G35

  1. Inoperative speedometer: The speedometer may not function correctly or may show erratic readings.
  2. Cruise control issues: The cruise control system may not engage or maintain speed properly.
  3. Harsh shifting: The transmission may shift erratically or harshly due to inaccurate speed data.
  4. Check Engine Light: The P0500 DTC will trigger the check engine light to illuminate on the dashboard.

How to Fix P0500 2003 Infiniti G35

  1. Diagnose the issue: Use a scan tool to retrieve the DTC and perform a visual inspection of the VSS and related components.
  2. Replace the vehicle speed sensor: If the VSS is faulty, replace it with a new sensor following manufacturer guidelines.
  3. Check wiring and connectors: Inspect the wiring harness and connectors for damage or corrosion, repairing or replacing as needed.
  4. Reset the ECM/TCM: Clear the DTC and reset the ECM or TCM to ensure the code does not reappear.
  5. Test drive: After repairs, test drive the vehicle to confirm that the speedometer, cruise control, and transmission are functioning correctly.

Cost to Fix P0500 2003 Infiniti G35

The typical repair costs for a P0500 DTC in a 2003 Infiniti G35 can range from $150 to $400, including parts and labor. However, specific diagnosis time and labor rates at auto repair shops can vary based on factors such as location, vehicle make and model, and engine type. It's advisable to check local rates for a more precise estimate. Keep in mind that rates in metropolitan areas or at dealerships may be higher, while independent shops often charge less.

Tech Notes for P0500 2003 Infiniti G35

On most Infiniti models the Vehicle Speed Sensor (VSS) is installed in the transaxle, on some Infiniti models poor connection at the speedometer can cause the problem. Before replacing the sensor you should try cleaning the sensor gear and erasing the code. If the light comes back you may have to replace the sensor.

When is the Code Detected?

The almost 0 km/h (0 MPH) signal from vehicle speed sensor is sent to ECM even when vehicle is being driven.

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P0500 2003 Infiniti G35 Code

1. What are the common symptoms of OBDII code P0500 in a 2003 Infiniti G35?

- Common symptoms include erratic or non-functional speedometer readings, issues with cruise control, and the illuminated Check Engine light.

2. What does the OBDII code P0500 indicate in a 2003 Infiniti G35?

- OBDII code P0500 in a 2003 Infiniti G35 specifically refers to a malfunction in the Vehicle Speed Sensor (VSS) circuit.

3. What are the potential causes of OBDII code P0500 in a 2003 Infiniti G35?

- Possible causes include a faulty Vehicle Speed Sensor, damaged wiring or connectors in the VSS circuit, or issues with the speedometer itself.

4. How can I diagnose the cause of OBDII code P0500 in my 2003 Infiniti G35?

- To diagnose the issue, you can use a scan tool to retrieve the specific trouble codes, inspect the VSS wiring and connections for damage, and test the VSS for proper functionality.

5. Can I continue driving my 2003 Infiniti G35 with OBDII code P0500?

- It is not recommended to drive your vehicle with OBDII code P0500, as it can lead to inaccurate speed readings and other potential issues that may affect the vehicle's performance.

6. How can I repair OBDII code P0500 in my 2003 Infiniti G35?

- Repairing OBDII code P0500 typically involves replacing the faulty Vehicle Speed Sensor, repairing any damaged wiring or connectors, and clearing the trouble codes with a scan tool.

7. Is it possible to reset OBDII code P0500 in a 2003 Infiniti G35 without fixing the underlying issue?

- While you can clear the trouble code temporarily, it is crucial to address the root cause of OBDII code P0500 to prevent further issues and ensure the proper functioning of your vehicle.

8. Can a DIY enthusiast repair OBDII code P0500 in a 2003 Infiniti G35?

- Yes, replacing the Vehicle Speed Sensor and checking the wiring connections can be manageable for a DIY enthusiast with the necessary tools and automotive knowledge.

9. Are there any preventive measures to avoid OBDII code P0500 in a 2003 Infiniti G35?

- Regularly inspecting the VSS wiring and connections, as well as ensuring proper maintenance of the vehicle's speed-related components, can help prevent OBDII code P0500 from occurring.

10. How long does it typically take to repair OBDII code P0500 in a 2003 Infiniti G35?

- The repair time for OBDII code P0500 can vary depending on the specific issue, but it usually takes a few hours to diagnose, replace the VSS, and clear the trouble codes.

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